Cooler for explosive-engines.



PATENTED PEB. 19, 1907.

E. A. JOHNSTON. COOLER FOR BXPLOSIVE ENGINES.

APPLICATION FILED JANJI. 1906.

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IINITED STATES PATENT orrion.

EDWARD A. JOHNSTON, OF STERLING, ILLINOIS, ASSIGNOR TO INTERNA- TIONALHARVESTER COMPANY, A CORPORATION OF NEW JERSEY.

COOLER IFGF! EXPLOSlVE-ENGlNES.

- Specification' of Letters Patent.

Patented Feb.. 19, 1907.

Application sied January 11,10. sein No. 295.524.

`ject being toprovide a device whichwill be very compact inconstruction, effective in its Work, simple in design, and particularlyadapted for use on portable engines and autoinobiles. A

The great weight ofthe tanks as at present in general use when.l lilledwith water is very objectionable, and the excessive vibrations to Whichthey are constantly subjected when mounted-on the same base with the`engine.

frequently cause them to spring leaks.

` My invention is directed to overcoming these diiliculties, and isillustrated in the accompanying drawings, in whichiguie 1 represents alongitudinal vertical section ofthe improved cooling device. Ifig.

-2 is a perspective view of the cooling-tank, and Fig. 3 represents acentral transverse vertical section of same.

The device consists, essentially, of a boxshaped structure having aninclosed distributing-receptacle a at the top, a Water-receiving p an bat the bottom, open side c, closed ends d, and a plurality ofvertically-disposed transversely-arranged parallel screens e, ex-

tending from the bottom of the distributingreceptacle ct to the bottomof the pan b. The

bottoni a of the receptacle a inclines upwardly from theends, and abovethe highest point midway of its length is placed the inletpipe f, whichis provided with the series of outlet-orilices f The upper ends of thescreense are received by narrow slits a2 in the bottom c', and the lowerends of the screens are bent `and soldered to the bottoinof the pan b,as shown in Fig. 1. It is apparent, owever, that the screens couldconnect with a series of openings instead of a sht; but the slit ispreferred.

The outlet-pipe g and inlet-pipe f connect with the water-jacket on theengine, a'pump (not shown) being introduced in the run to vproducecirculation. The slits a2 are so proportioned in size that the combinedoutlet produced by all will bejust sufficient to permit the waterreceived from the inlet-pipe f to pass therethrough, thusdistributingthe waterequally to all the screens e. The hot water fromthe engine drips down these screens and in this manner presents a largecooling-surface to the action of the air. For stationary. engines bothsides are left open, as shown; but when used on automobiles it has beenfound desirable to close the rear side in order to prevent the violentair-currents blowing 'the water from the screens.

What I claim as my invention, and desire to secure by Letters Iatent,is-

1. In a devicey of the class described, in combination, an incloseddistributing-receptacle provided with an inclined bottom having a seriesof slits formed therein, an inletipe leading thereto, a water-receivingpan ocated beneath said receptacle, a plurality of screens engaging theslits in the bottom of the receptacle and extending to the bottom ofsaid pan, and an outlet-pipe leading from` the receiving-pan.

2. In a device ofthe class described,' in combination, an'incloseddistributing-receptacle provided with an inclined bottoni having aseries of slits formed therein, an inletpipe leading thereto. awater-receiving an ocated beneath said receptacle, a plura ity of verlically-disposed, .transversely-arranged parallel screens engaging theslits in the bottom of' the receptacle and extending tothe bottom ofsaid pan, and an outlet-pipe leading from the receiving-pan.

3. In a device of the class described. a boxlike structure having opensides and closed ends and comprised of an incloseddistributing-receptacle which forms the upper part thereof, the saidreceptacle having a bottoni inclining upwardly from each end andprovided with a series of Islits therein, an inletpipe leading to saidreceptacle, a water-reoei-ving pan which forms the base of saidboxlilS-estructure,- a plurality of vertically-dis,- posed,transversely-arranged parallel screens engaging the slits in the bottomof the receptacle and extending to the bottom of said pan, and` anoutlet-pipe leading from' the receiving-p an. y

EDWARD A. JOHNSTON.

l Witnesses:

E. R. THOMPSON, FRED B. Fiinions.

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